DieselBike.net

The price of an automotive spare part has only little to do with the actual value. It is more the transport and stockkeeping cost. I know of a part I designed wich costed 2,83 Euro to make it, and 86,45 as a spare part.
Alex

No, I was talking about this one. http://www.ural-zentrale.de/en/silent-block-shock-absorber I dont have this one here, I have only the one with metall outside. But this one should do your job perfect, the rubber is vulcanised to the steel bush. The steel bush has a 10,x mm hole. Outside it might be...

Here in the Philippinens they make all kind of rubber buchings from old truck tires. Real cheap. What is the size of this bushig? It looks to me like the one Dnepr uses for the rear suspension bearing. I am sure we can find rubber for a better price. Alex I think I am going to have to do something ...

Here in the Philippinens they make all kind of rubber buchings from old truck tires. Real cheap.
What is the size of this bushig? It looks to me like the one Dnepr uses for the rear suspension bearing.
I am sure we can find rubber for a better price.
Alex

Looking good, Have you checked sump is oil tight? best way if you haven't is with petrol, a jam jar full would be enough. No! Oil will leak from holes to small for petrol. Take diesel. I disagree that diesel or hot oil will find holes better than petrol. I actually used both and celly thinners one ...

Building the bike. Top of my list, bottom of the wife's. When I was building the bike wife told me that she will never ride with me on this loud and smoking machine. But she is very economical, and when she saw what mpg it does she tell me now: Lets take the diesel bike, we dont need the car for th...

Looking good, Have you checked sump is oil tight? best way if you haven't is with petrol, a jam jar full would be enough. No! Oil will leak from holes to small for petrol. Take diesel. And, is the flow beween the 2 chambers good enough? I had it once on an old BMW V8 that the oilpressure dropped at...

750 and still running.

Belt ran 627 Km now and still looks good. But I hve the feeling it streched and is longer now, because top speed is less with the enginge running full speed. I think, hat the belt does not go to the smallest diameter on the driven, and so the reduction does not go to 1:1. I will dieve this belt till...

My jachshaft is made from an old pripshaft of my boat, 3/4" stainless steel. The spocket is weldet to the shaft.
Alex

Did you get info from them? About distance to the bearing. Mine is quite far, and no problem. Drove 1200 Km with it up to now. Alex

Mine stays open only in the position when the exaust valve is closed. Did you try to turn the engine to the point where the compression stroke starts?
Alex

Because belt live is the main problem now. I openpend a new thead for this, as this is interessting for everybody with a CVT https://www.dieselbikeforum.com/view ... 58#p23258-
Alex

The cooling seems to help, so I did more. y4.jpg To cool the driver, it would be best to blow in from behind, so I added one more fan on the driven bowing to the front. y1.jpg And there is a gap between driver and crank housing, and blowing air in there would cool the crank and the inner disk of the...

I saw this somewere in the internet, but I am not sure were. Sorry. And I am in the Philippines with very slow Intrenet. But, as I see, you are in the USA, why dont you call COMET? I lost about 10 M/h oft the top speed. when my jackshaft moved 5 mm. Cant you turn the driver on the cank?
Alex

Normally that's absolutely correct! However, Comet sells a yellow reverse-wound spring P/N 204524A (scroll to the bottom of the page: https://www.gokartsupply.com/4044seri.htm) that allows the driven clutch to be mounted with the movable sheave and spring outboard instead of inboard. This solves my...

I am afraid you driven is installed wrong way. As you have it, the belt will go out of line when it shifts up. in the driver it will move to the right, on the driven to the left.
Alex

I have a traktor with a 3 zylinder Kubota, the tank is higher than the eginge and there is no lift pump. And that is how it came from the factory.
Alex

dieselbikin wrote: Finally is it a problem to shut the engine down with the decompression lever? Thanks.

Yes, Better open the fuel line to the injetor.
Alex

This rack screw also limits the max power. When is hang the spring in 2a, I also opened the rack screw. And I reached more than 90 Km/h. But, going uphill I left real bad black smoke behind me. So I turned it back in a few turns. No more black smoke, but top speed is only 80 Km/h. This scew is not e...

I have a COMET 40 clone, and it had bronce bushings, part 6. Parts 2, the cam rollers I made out of bronce also. Original they are iron.
Alex

duople
Alex

loch.jpg luefter.jpg I notised that the pulleys get real hot. And I read that snowmobiles have cooling for the CVT. To protect my foot I made a cover for my CVT. It is good for my foot but it keeps the air of the CVT. So I added a blower, but the Pulleys are still very hot. And the word whistleblow...

In 3b my engine did only 2600, I put the sping in 2a and get 4000 now. I will use the 4000 only for overtaking, normal running is about 3000 with the Throttle little bit released.
Alex

The 10 belts from China came, and I did ride, and eberything feels fine with the shorter reduction. And the bronce weights. But, after 500 Km the first belt broke.
I hope that the belt with Kevlar will last longer. Did anybody tried both types?
Alex

The Chinese belt broke again after ca. 500 Km.

Wellcome here. I am looking foreward to see what you are doing.
Alex

I made some modifications you can see here:
https://www.dieselbikeforum.com/view ... =41&t=3212
And i got 10 Belts from China today. I made a test drive, reacht 90 km/h still exellerating, but had to brake because os trafic.
It is dark now, LED light works fine. More tomorrow
Alex

my mistake, the gearbox shares only the primery drive oil. But this is olso makes it unsuitable.
Alex

A 4stroke is not suitable, because engine and gear are in the same oil. Get an old 250 ccm 2 stroke, and put in a staight shaft with a puley instead of the crankshaft. This shaft has to be made by a mashineshop, but all other modificatons you can do with a saw.
Alex